package app14;
import java.util.Comparator;

public class LastNameComparator implements Comparator
{
	public int compare(Object person, Object anotherPerson) 
	{
		String lastName1 = ((Person)
		person).getLastName().toUpperCase();
		String firstName1 =
		((Person) person).getFirstName().toUpperCase();
		String lastName2 = ((Person)
		anotherPerson).getLastName().toUpperCase();
		String firstName2 = ((Person) anotherPerson).getFirstName()
		.toUpperCase();
		if (lastName1.equals(lastName2)) {
		return firstName1.compareTo(firstName2);
		} else {
		return lastName1.compareTo(lastName2);
		}
	}
}
